Tow hook



FIG. 1 is a perspective view of a tow hook, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right-side elevational view thereof, the left-side elevational view being a mirror image thereof; and,

FIG. 5 is a top plan view thereof, the bottom plan view being a mirror image thereof. 

CLAIM I claim the ornamental design for a tow hook, as shown and described. 